pressure tank/pressure switch...

[maverick]

my pressure tank (14 gal.) is 50' away from the well. question...can I have the pressure switch at the well and it work as designed?

[Cary Austin]

The pressure switch and tank need to be very close together.  But with a CSV you could put a little 2.2 or 4.5 gallon size tank at the well with the pressure switch, then a larger tank could be installed as far away as you want.  But if you have room for the CSV and 4.5 gallon size tank at the well, that is really all the pressure tank you need.

[maverick]

will I need a check valve between the well head and the  CSV125?
I have a 2.2 tank, can it be used as the only tank?

[maverick]

also on my 1-1/4" sprinkler trunk line would it be of any advantage to put a 44 gal. tank at the end (550')?

[Cary Austin]

will I need a check valve between the well head and the  CSV125?
I have a 2.2 tank, can it be used as the only tank?

The only check valve needed is the one on the pump.

A 2.2 gallon tank will work, but it is a little smaller than we like.  Just set the CSV at the same pressure as the pump starts when using the smaller tank.

[maverick]

can a 4.4 Gal. tank be mounted upside down?
got my CSV and am ready to install it and the 4.4 Gal. tank...

[Cary Austin]

Yes those tanks can be in any position.

[maverick]

Cary,
thanks for all your help....
is there a standard depth to put a CSV in the well drop pipe?

[Cary Austin]

Cary,
thanks for all your help....
is there a standard depth to put a CSV in the well drop pipe?

The CSV125 is a non-adjustable valve.  They come in 40,50, or 60 PSI.  And the further down the well you install it, the less pressure it will deliver by 1 PSI for every 2.31 feet it is installed below the surface.  So if you install a 60 PSI valve down the well 23' deep, it will only deliver 50 PSI.

You need to install the CSV 3 to 4 feet below the pitless adapter to be able to center it in the well.  So if your pitless is 5' below surface and you set the CSV 3' below that, it will be 8' below surface and a 50 PSI valve will only deliver about 46 PSI.

The CSV12560-1 valves are designed to regulate about 4 PSI higher than 60 PSI, so you still get 60 PSI after setting the CSV below surface 8'.  But the 50 and 40 PSI valves do not have the extra 4 PSI, so you want to set them as close to the surface as you can.